arvan_create_cname_record

Convenience: create a CNAME record from name to target.

SERVERArvanCloud MCP Server SOURCEdwin-gharibi/arvancloud-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dwin-gharibi-arvancloud-mcp/arvan-create-cname-record.md

WHAT IT DOES

What arvan_create_cname_record does on ArvanCloud MCP Server

AI agents use arvan_create_cname_record to create or update resources in ArvanCloud MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your ArvanCloud MCP Server environment.

RISK

Why arvan_create_cname_record is rated Medium

This tool writes DNS records, which is a reversible modification. While destructive deletion is not possible here, creating CNAME records can redirect traffic, potentially disrupting services or enabling DNS hijacking if misused by an agent. The high severity reflects the blast radius of DNS misconfiguration in production environments.

From the tool's definition Creates a CNAME record (DNS modification). The action 'create' is explicitly stated, and CNAME records are fundamental DNS configuration entries that route domain names to targets.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs arvan_create_cname_record safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ArvanCloud MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For arvan_create_cname_record, this is the rule to start with:

arvan_create_cname_record Rate-limited

arvan_create_cname_record stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "arvan_create_cname_record": {
      "limits": [
        {
          "counter": "arvan_create_cname_record_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ArvanCloud MCP Server, apply this rule, and every arvan_create_cname_record call is checked against it from then on.

FAQ

Questions about arvan_create_cname_record

What does the arvan_create_cname_record tool do? +

Convenience: create a CNAME record from name to target. It is categorised as a Write tool in the ArvanCloud MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on arvan_create_cname_record? +

Register the ArvanCloud MCP Server MCP server in PolicyLayer and add a rule for arvan_create_cname_record: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ArvanCloud MCP Server. Nothing to install.

What risk level is arvan_create_cname_record? +

arvan_create_cname_record is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit arvan_create_cname_record? +

Yes. Add a rate_limit block to the arvan_create_cname_record rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block arvan_create_cname_record completely? +

Set action: deny in the PolicyLayer policy for arvan_create_cname_record. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides arvan_create_cname_record? +

arvan_create_cname_record is provided by the ArvanCloud MCP Server MCP server (dwin-gharibi/arvancloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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